文档介绍：冷轧复合对铝合金复合箔组织与性能的影响摘要: 研究了采用冷轧复合法生产汽车散热器用铝合金复合箔的工艺,主要研究了冷轧首道次压下率、包覆层厚度及成品前退火制度对复合箔组织与性能的影响。结果表明:皮材 A4045 和芯材 A3003 在 30%~50% 的首道次压下率下可以实现良好的初结合,冷轧工艺生产的复合箔上、下包覆层的厚度基本一致。最后一道次的精轧压下率在 25%~35% 左右时,复合箔成品的抗下垂性能最佳。复合箔成品前的退火温度应控制在 320~400 ℃,退火温度为 400 ℃时,退火时间以不超过 80min 为宜。关键词:冷轧复合;复合箔;压下率;抗下垂性;退火 E ffect ofC old -R oll ing Cladding onM icrostructure and P ropert ies posite A luminum Alloy F oil Abstract :T he cold - roll ing cladding process posite a luminum alloy f oil for automobile heat exchanger was investigated, as well as the effect s of percentage reduction of first pass , clad sheet thickness and final annealing schedule on the m icrostructure and p ropert ies of the f oil . The results showed that bonding the clad sheets A4045 to the core material A3003 on both sides eeds initially when the percentage reduction is 30% ~ 50% of first pass during cold rolling, and the thickness of both the clad sheets of posite foil are basically the same . The best sagging resist ance is available when the percentage reduction of final pass is 25%~35%. The annealing temperature should be controlled in the range from 320 to 400 ℃ before finish rolling, and the annealing time should control within 80 minutes when annealed at 400 ℃. Key words : cold - roll ing cladding; composite foil; percentage reduction; sagging resistance ; annealing 世界汽车工业的发展方向为轻量化[1] ,其中, 铝及铝合金以比强度高、耐腐蚀性佳、热稳定性好、易成型和简化结构等特点成为了